Hello, fairly new to forums but anyway i just bought a 2007 BMW 550i with 170k miles yesterday and just my luck get in today and get a Service Engine Soon light come on the dash. Didnt think much of it so i had code ran and i got cylinder 4 misfire. Got a new coil and spark plug and put in and still didnt fix my issue so i just parked it. Go out to start a few minutes ago (few hours after letting it sit) and the service engine soon light started blinking and the car acted like it was running on one cylinder jumping between 500-800 rpms and sometimes down to around 400 rpms. Cants seem to figure out what it could be as im fairly new to BMW. Any help would be very appreciative
Moved to E60 forum
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